Railway wagon bogie and axle box rubber spring thereof

ABSTRACT

The present application provides an axle box rubber spring including an upper end plate, a lower end plate and a rubber member filled between the upper end plate and the lower end plate, wherein a surface, connected with the rubber member, of at least one of the upper end plate and the lower end plate is provided with a projection and a recess which are distributed alternately, and each of the projection and the recess is in a strip shape. Due to the projection and the recess which are distributed alternatively and both in a strip shape, the axle box rubber spring according to the present application has an increased rigidity, and a reliable positioning is ensured, and further the operating requirement of a heavy-haul railway wagon may be met. The present application further provides a railway wagon bogie having the axle box rubber spring.

The present application claims the benefit of priority to Chinese patent application No. 201310168949.8 titled “RAILWAY WAGON BOGIE AND AXLE BOX RUBBER SPRING THEREOF”, filed with the Chinese State Intellectual Property Office on May 9, 2013. The entire disclosure thereof is incorporated herein by reference

FIELD OF THE INVENTION

The present application relates to the technical field of railway wagon, particularly relates to a railway wagon bogie and an axle box rubber spring thereof.

BACKGROUND OF THE INVENTION

Heavy-haul railway transportation has been internationally recognized as one of main directions of the railway transportation development due to its huge carrying capacity, high efficiency and low transportation cost. The heavy-haul railway transportation is an inevitable trend of the railway transportation development in China. Due to an increased axle load caused by the heavy-haul railway transportation, the requirement for dynamics performance of a vehicle is increasingly higher. An axle box rubber spring is one of important rubber elastic members of a heavy-haul wagon, and performance parameters and a reliability of the axle box rubber spring have a direct effect on the dynamics performance of the vehicle.

The axle box rubber spring is a part of a railway wagon bogie, and is arranged between an adapter and a side frame of a framework, and the adaptor is mounted on an axle. The axle box rubber spring includes an upper metal plate, a lower metal plate, and a rubber filled between the upper metal plate and the lower metal plate.

In using, the axle box rubber spring may be subjected to a force in an axial direction, a force in a length direction of the side frame of the framework, and a force in a thickness direction of the axle box rubber spring. For convenience of description, the axial direction is defined as a transversal direction, the length direction of the side frame of the framework is defined as a longitudinal direction, and the thickness direction of the axle box rubber spring is defined as a vertical direction.

In the heavy-haul railway transportation, the axle box rubber spring of the heavy-haul wagon is required to have a larger vertical deflection so as to ensure that the heavy-haul wagon bogie has an excellent performance of low wheel-rail dynamic force; and also the axle box rubber spring is required to have a larger longitudinal rigidity and transversal rigidity, so as to ensure that the heavy-haul wagon has a higher critical speed under both an empty loaded condition and a heavy loaded condition, and a good curve negotiation performance.

For a heavy-haul railway wagon, the longitudinal rigidity and the transversal rigidity of a conventional axle box rubber spring can meet the requirement; however the vertical deflection thereof is relatively smaller and cannot meet the requirement. Generally, a thickness of the rubber in the axle box rubber spring is increased to improve the vertical deflection of the axle box rubber spring. However, the longitudinal rigidity and the transversal rigidity of the axle box rubber spring may be decreased sharply when the thickness of the rubber is increased, which may results in that the transversal rigidity and the longitudinal rigidity can not meet the operating requirement of the heavy-haul railway wagon. The rigidity herein merely includes the transversal rigidity and the longitudinal rigidity, and does not include the vertical rigidity.

In conclusion, a technical problem to be solved presently by those skilled in the art is to increase the rigidity of the axle box rubber spring so as to meet the operating requirement of a heavy-haul railway wagon.

SUMMARY OF THE INVENTION

An object of the present application is to provide an axle box rubber spring having an increased rigidity so as to meet an operating requirement of a heavy-haul railway wagon. Another object of the present application is to provide a railway wagon bogie having the axle box rubber spring.

In order to achieve the above object, the present application provides the following technical solutions.

An axle box rubber spring includes an upper end plate, a lower end plate and a rubber member filled between the upper end plate and the lower end plate, wherein a surface, connected with the rubber member, of at least one of the upper end plate and the lower end plate is provided with a projection and a recess which are distributed alternately, and each of the projection and the recess is in a strip shape.

Preferably, in the axle box rubber spring, the projection and the recess which are distributed alternately are provided on both the surface, connected with the rubber member, of the upper end plate and the surface, connected with the rubber member, of the lower end plate; and the projection on the upper end plate is opposite to the recess on the lower end plate, and the recess on the upper end plate is opposite to the projection on the lower end plate.

Preferably, in the axle box rubber spring, the upper end plate includes an upper flat plate and two upper inclined plates connected to two ends of the upper flat plate respectively, the upper inclined plate is inclined with respect to the upper flat plate, and an angle formed between the upper inclined plate and the upper flat plate is an obtuse angle;

the lower end plate includes a lower flat plate and two lower inclined plates connected to two ends of the lower flat plate respectively, and the lower inclined plate is inclined with respect to the lower flat plate; and

the lower inclined plate and the upper inclined plate which are located at the same side have the same inclination direction.

Preferably, in the axle box rubber spring,

the projection and the recess are arranged on the upper flat plate and/or the lower flat plate; and

each of the projection and the recess is extending in a longitudinal direction or in a transversal direction; the longitudinal direction is a direction of the upper flat plate extending from one upper inclined plate toward the other upper inclined plate, and the transversal direction is a direction which is perpendicular to the longitudinal direction and parallel to the upper flat plate.

Preferably, in the axle box rubber spring, the projection and the recess are arranged on the upper inclined plate and/or the lower inclined plate; and

each of the projection and the recess is extending in a transversal direction or in an inclination direction of the upper inclined plate; the transversal direction is a direction which is perpendicular to a longitudinal direction and parallel to the upper flat plate, and the longitudinal direction is a direction of the upper flat plate extending from one upper inclined plate toward the other upper inclined plate.

Preferably, in the axle box rubber spring, the rubber member is provided with an adjusting hole.

Preferably, in the axle box rubber spring, the upper end plate includes an upper flat plate and two upper inclined plates connected to two ends of the upper flat plate respectively, the upper inclined plate is inclined with respect to the upper flat plate, and an angle formed between the upper inclined plate and the upper flat plate is an obtuse angle;

the lower end plate includes a lower flat plate and two lower inclined plates connected to two ends of the lower flat plate respectively, and the lower inclined plate is inclined with respect to the lower flat plate;

the lower inclined plate and the upper inclined plate which are located at the same side have the same inclination direction; and the adjusting hole is located between the upper inclined plate and the lower inclined plate.

Preferably, in the axle box rubber spring, the upper end plate includes an upper flat plate and two upper inclined plates connected to two ends of the upper flat plate respectively, the upper inclined plate is inclined with respect to the upper flat plate, and an angle formed between the upper inclined plate and the upper flat plate is an obtuse angle;

the lower end plate includes a lower flat plate and two lower inclined plates connected to two ends of the lower flat plate respectively, and the lower inclined plate is inclined with respect to the lower flat plate;

the lower inclined plate and the upper inclined plate which are located at the same side have the same inclination direction; and

the adjusting hole is located on a connecting part where the upper flat plate and the upper inclined plate are connected.

Preferably, in the axle box rubber spring, a blind hole is provided on an upper flat plate side or a lower flat plate side of the axle box rubber spring and is extending to the rubber member.

In the axle box rubber spring according to the present application, a surface, connected to the rubber member, of at least one of the upper end plate and the lower end plate is provided with a projection and a recess which are distributed alternately, and each of the projection and the recess is in a strip shape. When the projection and the recess are extending in a transversal direction and the axle box rubber spring is subjected to a longitudinal force (the longitudinal direction is perpendicular to the transversal direction), the rubber member may be subjected to a part of a longitudinal compressing force, thereby increasing the longitudinal rigidity of the rubber member, and further increasing the longitudinal rigidity of the entire axle box rubber spring. When the projection and the recess are extending in a longitudinal direction and the axle box rubber spring is subjected to a transversal force, the rubber member may be subjected to a part of a transversal compressing force, thereby increasing the transversal rigidity of the rubber member, and further increasing the transversal rigidity of the entire axle box rubber spring. When the projection and the recess are extending in an inclined direction (the inclined direction is inclined with respect to both the transversal direction and the longitudinal direction), and the axle box rubber spring is subjected to either a transversal force or a longitudinal force, the rubber member may be subjected to both a transversal compressing force and a longitudinal compressing force, thereby increasing the longitudinal rigidity and the transversal rigidity of the rubber member, and further increasing the longitudinal rigidity and the transversal rigidity of the axle box rubber spring. In conclusion, when a thickness of the rubber member is increased to improve the vertical deflection of the axle box rubber spring, the rigidity of the axle box rubber spring may be increased by providing the projection and the recess which are distributed alternately and both in a strip shape. Therefore, the axle box rubber spring according to the present application has an increased rigidity, which may ensure a reliable positioning and meet the operating requirement of the heavy-haul railway wagon.

Based on the axle box rubber spring, the present application further provides a railway wagon bogie having one of the above axle box rubber springs.

BRIEF DESCRIPTION OF THE DRAWINGS

For more clearly illustrating embodiments of the present application or the technical solution in the prior art, drawings referred to describe the embodiments or the prior art will be briefly described hereinafter. Apparently, the drawings in the following description are only several embodiments of the present application, and for the person skilled in the art other drawings may be obtained based on these drawings without any creative efforts.

FIG. 1 is a schematic view showing the structure of an axle box rubber spring according to an embodiment of the present application;

FIG. 2 is a schematic top view showing the structure of the axle box rubber spring according to the embodiment of the present application;

FIG. 3 is a sectional view taken along line A-A of FIG. 2, and a double arrow-headed line in the figure indicates a longitudinal direction;

FIG. 4 is a sectional view taken along line B-B of FIG. 3, and a double arrow-headed line in the figure indicates a transversal direction;

FIG. 5 is an another schematic view showing the structure of an axle box rubber spring according to an embodiment of the present application;

FIG. 6 is a sectional view taken along line C-C of FIG. 5, and a double arrow-headed line in the figure indicates the longitudinal direction;

FIG. 7 is a sectional view taken along line D-D of FIG. 5, and a double arrow-headed line in the figure indicates the transversal direction;

FIG. 8 is a sectional view taken along line E-E of FIG. 7, and a double arrow-headed line in the figure indicates the longitudinal direction;

FIG. 9 is a schematic view showing the structure of FIG. 8 viewed from a direction F; and

FIG. 10 is a schematic view of forces on a rubber member in the axle box rubber spring according to the embodiment of the present application, and in the figure, a horizontal single arrow-headed line indicates a force exerted on the rubber member, a line with an upward arrow head indicates a shearing force subjected by the rubber member, a line with a downward arrow head indicates a compressing force subjected by the rubber member, and the horizontal single arrow-headed line may indicate not only a transversal force, but also a longitudinal force.

REFERENCE NUMERALS IN FIGS. 1 TO 10

1 upper end plate, 11 upper inclined plate, 12 upper flat plate, 2 lower end plate, 21 lower inclined plate, 22 lower flat plate, 3 rubber member, 31 adjusting hole,  4 projection, 5 recess, and  6 blind hole.

DETAILED DESCRIPTION OF THE INVENTION

Embodiments of the present application provide an axle box rubber spring having an increased rigidity which may meet an operating requirement of a heavy-haul railway wagon.

The technical solutions in the embodiments of the present application will be described clearly and completely hereinafter in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only a part of the embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all of other embodiments, made by the person skilled in the art without any creative efforts, fall into the protection scope of the present application.

The axle box rubber spring according to an embodiment of the present application includes an upper end plate 1, a lower end plate 2, a rubber member 3 filled between the upper end plate 1 and the lower end plate 2. A surface, connected with the rubber member 3, of at least one of the upper end plate 1 and the lower end plate 2 is provided with a projection 4 and a recess 5 which are distributed alternately, and each of the projection 4 and the recess 5 is in a strip shape.

In the axle box rubber spring according to embodiments of the present application, the projection 4 and the recess 5 which are distributed alternately are only provided on the surface, connected with the rubber member 3, of the upper end plate 1, and each of the projection 4 and the recess 5 is in a strip shape; or, the projection 4 and the recess 5 which are distributed alternately are only provided on the surface, connected with the rubber member 3, of the lower end plate, and each of the projection 4 and the recess 5 is in a strip shape; or, the projection 4 and the recess 5 which are distributed alternately are provided on both the surface, connected with the rubber member 3, of the upper end plate 1, and the surface, connected with the rubber member 3, of the lower end plate 2, and each of the projection 4 and the recess 5 is in a strip shape.

In the axle box rubber spring according to embodiments of the present application, when the projection 4 and the recess 5 are extending in a transversal direction and the axle box rubber spring is subjected to a longitudinal force (the longitudinal direction is perpendicular to the transversal direction), the longitudinal force is decomposed into two component forces under the action of an inclined surface of the projection 4, and the rubber member 3 may be subjected to a shearing force and a compressing force (as shown in FIG. 10). The rubber member 3 has a smaller rigidity when subjected to a shearing force and has a larger rigidity when subjected to a compressing force, and the projection 4 reduces the shearing force subjected by the rubber member 3 and exerts a compressing force on the rubber member 3, thereby increasing the longitudinal rigidity of the rubber member 3, and further increasing the longitudinal rigidity of the entire axle box rubber spring. When the projection 4 and the recess 5 are extending in a longitudinal direction and the axle box rubber spring is subjected to a transversal force, the transversal force is decomposed into two component forces under the action of the inclined surface of the projection 4, the rubber member 3 may be subjected to a shearing force and a compressing force (as shown in FIG. 10), the projection 4 reduces the shearing force subjected by the rubber member 3 and exerts a compressing force on the rubber member 3, thereby increasing the transversal rigidity of the rubber member 3, and further increasing the transversal rigidity of the entire axle box rubber spring. When the projection 4 and the recess 5 are extending in an inclined direction (the inclined direction is inclined with respect to both the transversal direction and the longitudinal direction) and the axle box rubber spring is subjected to either a transversal force or a longitudinal force, the rubber member 3 may be subjected to a compressing force, and both of the longitudinal rigidity and the transversal rigidity of the rubber member 3 can be increased, which further increases the longitudinal rigidity and the transversal rigidity of the axle box rubber spring. In conclusion, when a thickness of the rubber member 3 is increased to improve the vertical deflection of the axle box rubber spring, the rigidity of the axle box rubber spring may be increased by providing the projection 4 and the recess 5 which are distributed alternately and both in a strip shape. Therefore, the axle box rubber spring according to the embodiments of the present application has an increased rigidity, which may ensure a reliable positioning and meet the operating requirement of the heavy-haul railway wagon.

Also, in the axle box rubber spring according to an embodiment of the present application, an extending direction of each of the projection 4 and the recess 5 may be adjusted according to the actual required rigidity, so as to adjust the rigidity of the axle box rubber spring in various directions to meet different demands. For example, when it is required to have a larger transversal rigidity, the projection 4 and the recess 5 may extend in the longitudinal direction; and when it is required to have a larger longitudinal rigidity, the projection 4 and the recess 5 may extend in the transversal direction.

In the axle box rubber spring according to the above embodiments of the present application, the thickness of the rubber member 3 may be increased according to actual requirements so as to increase the vertical deflection of the axle box rubber spring. The thickness of the rubber member 3 is not limited in the embodiments of the present application. Apparently, even if the thickness of the rubber member 3 is not increased, the rigidity of the axle box rubber spring may also be increased by providing the projection 4 and the recess 5 which are distributed alternately and both in a strip shape.

In order to further optimize the above technical solutions, in the axle box rubber spring according to the above embodiments of the present application, the projection 4 and the recess 5 which are distributed alternately are provided on both the surface, connected with the rubber member 3, of the upper end plate 1 and the surface, connected with rubber member 3, of the lower end plate 2; and the projection 4 on the upper end plate 1 is opposite to the recess 5 on the lower end plate 2, and the recess 5 on the upper end plate 1 is opposite to the projection 4 on the lower end plate 2 (as shown in FIGS. 4 and 7). In this way, the maximum thickness of the rubber member 3 is reduced, which increases the rigidity of the axle box rubber spring effectively; and the thickness of the rubber member 3 is more uniform, which makes the rigidity of the axle box rubber spring more uniform. In the axle box rubber spring according to the above embodiments of the present application, a cross section of the projection 4 perpendicular to the length direction of the projection 4 may be in a gear tooth shape (as shown in FIGS. 4 and 7), and may also be in a ladder shape (as shown in FIG. 10). A shape of each of the projection 4 and the recess 5 is not limited in the embodiments of the present application.

In order to further increase the rigidity of the axle box rubber spring, in the axle box rubber spring according to the above embodiments, the upper end plate 1 includes an upper flat plate 12, and two upper inclined plates 11 connected to two ends of the upper flat plate 12 respectively. The upper inclined plate 11 is inclined with respect to the upper flat plate 12, and an angle formed between the upper inclined plate 11 and the upper flat plate 12 is an obtuse angle. The lower end plate 2 includes a lower flat plate 22, and two lower inclined plates 21 connected to two ends of the lower flat plate 22 respectively. The lower inclined plate 21 is inclined with respect to the lower flat plate 22, and the lower inclined plate 21 and the upper inclined plate 11 located at the same side have the same inclination direction (as shown in FIGS. 1, 3, 6 and 8). In this way, when the axle box rubber spring is subjected to a longitudinal force, the longitudinal force is decomposed into two component forces under the action of the upper inclined plates 11 or the lower inclined plates 21, and the rubber member 3 is subjected to a shearing force and a compressing force, which increases the longitudinal rigidity of the rubber member 3, and further increases the longitudinal rigidity of the entire axle box rubber spring. And, the above structure may also facilitate the cooperation among the axle box rubber spring, the side frame of the framework and the adapter.

In the axle box rubber spring according to embodiments of the present application, the longitudinal direction is a direction of the upper flat plate 12 extending from one upper inclined plate 11 towards the other upper inclined plate 11, and the transversal direction is a direction which is perpendicular to the longitudinal direction and parallel to the upper flat plate 12 (as shown in FIGS. 3, 4, and 6 to 8). The transversal direction and the longitudinal direction defined herein are consistent with the transversal direction and the longitudinal direction defined in the background art.

Preferably, in the axle box rubber spring according to the above embodiments, the upper end plate 1 is parallel to the lower end plate 2, therefore the entire axle box rubber spring has a uniform thickness and is easy to be installed, and it can also be ensured that the entire axle box rubber spring has a uniformly distributed rigidity.

In the axle box rubber spring according to the above embodiments, the projection 4 and the recess 5 may be arranged at any positions on the upper end plate and/or the lower end plate. For example, the projection 4 and the recess 5 may be arranged on the upper flat plate 12 and/or the lower flat plate 22, and may be arranged on the upper inclined plate 11 and/or the lower inclined plate 21. The position of each of the projection 4 and the recess 5 is not limited in the embodiments of the present application.

The axle box rubber spring according to the above embodiments may be adjusted according to the actually required rigidity. In the case of the projection 4 and the recess 5 being arranged on the upper flat plate 12 and/or the lower flat plate 22, both of the projection 4 and the recess 5 are preferably extending in the longitudinal direction when a larger transversal rigidity is required; and both of the projection 4 and the recess 5 are preferably extending in the transversal direction when a larger longitudinal rigidity is required. In the case of the projection 4 and the recess 5 being arranged on the upper inclined plate 11 and/or the lower inclined plate 21, both of the projection 4 and the recess 5 are preferably extending in the inclination direction of the upper inclined plate 11 when a larger transversal rigidity is required; and both of the projection 4 and the recess 5 are preferably extending in the transversal direction when a larger longitudinal rigidity is required.

In the axle box rubber spring provided in the above embodiments, when the projection 4 and the recess 5 are arranged on the upper inclined plates 11 and/or the lower inclined plates 21, it is preferable that, the projection 4 and the recess 5 at the two sides of the upper flat plate 12 are symmetric with respect to a centerline of the axle box rubber spring, which may ensures that the entire axle box rubber spring has a more uniform rigidity.

In the axle box rubber spring according to the above embodiments, numbers of the projection 4 and the recess 5 may be increased to enable the axle box rubber spring to have a larger rigidity as required. Preferably, the projection 4 and the recess 5 are arranged on the upper inclined plates 11 and the lower inclined plates 21 (as shown in FIG. 3). Since there are two upper inclined plates 11, the upper inclined plates 11 have an area larger than an area of the upper flat plate 12. When the numbers of the projection 4 and the recess 5 are restricted, a height of the projection 4 may be increased, and an interval between the projections 4 may be decreased, and in this way, the compressing force subjected by the rubber member 3 may be increased, thereby increasing the rigidity of the rubber member 3, and further increasing the rigidity of the entire axle box rubber spring. The numbers of the projection 4 and the recess 5, the height of the projection 4 and the interval between two adjacent projections 4 are determined according to the rigidity of the axle box rubber spring as actually required, and are not limited in the embodiments of the present application.

During actual use, the axle box rubber spring of the heavy-haul railway wagon is required to have not only a larger rigidity, but also a larger vertical deflection, so as to ensure that the bogie of the heavy-haul wagon has an excellent performance of low wheel-rail dynamic force. For increasing the vertical deflection of the axle box rubber spring, in the axle box rubber spring according to the above embodiments, the rubber member 3 is provided with an adjusting hole 31 (as shown in FIGS. 3, 6 and 9). In this way, a free surface of the rubber member 3 is increased, and the rubber member 3 may have a larger vertical deformation when subjected to a vertical force, which may further increase the vertical deflection of the entire axle box rubber spring. In the actual manufacturing process, a volume of an inner cavity of the adjusting hole 31 is determined according to the required vertical deflection. When the inner cavity of the adjusting hole 31 has a larger volume, the rubber member 3 has a larger free surface, and the rubber member 3 may have a larger vertical deformation when subjected to a vertical force, and therefore the entire axle box rubber spring may have a larger vertical deflection. The shape and dimension of the adjusting hole 31 are not limited in the embodiments of the present application. In the axle box rubber spring according to the above embodiments, the vertical direction refers to the thickness direction of the axle box rubber spring.

In the axle box rubber spring according to the above embodiments, the adjusting hole 31 may be located between the upper flat plate 12 and the lower flat plate 22, and in this way, it is convenient for arranging the projection 4 and the recess 5 on the upper inclined plate 11 and the lower inclined plate 21, and the adjusting hole 31 is preferably extending in the transversal direction or in the longitudinal direction. The adjusting hole 31 may be located between the upper inclined plate 11 and the lower inclined plate 21 (as shown in FIG. 6), and in this way, it is convenient for arranging the projection 4 and the recess 5 on the upper flat plate 12 and the lower flat plate 22, and the adjusting hole 31 is preferably extending in an inclination direction of the upper inclined plate 11 or in the transversal direction. The adjusting hole 31 may also be located at a connecting part where the upper flat plate 12 and the upper inclined plate 11 are connected (as shown in FIG. 3), and in this case, the adjusting hole 31 may only extends in the transversal direction. In this way, it is convenient for arranging the projection 4 and the recess 5 on the upper flat plate 12 and the upper inclined plates 11, and it is also convenient for arranging the projection 4 and the recess 5 on the lower flat plate 22 and the lower inclined plates 21, such that the requirement of rigidity of the axle box rubber spring can be met.

In the axle box rubber spring provided in the above embodiments, a number of the adjusting holes 31 is preferably even number, and the adjusting holes 31 are distributed symmetrically with respect to the centerline of the axle box rubber spring, and in this way the vertical deflection of the axle box rubber spring is distributed more uniformly. For example, when the adjusting holes 31 are located between the upper inclined plates 11 and the lower inclined plates 21, two adjusting holes 31 may be provided, and the two adjusting holes 31 are distributed symmetrically with respect to the centerline of the axle box rubber spring (as shown in FIG. 6).

In order to further increase the vertical deflection of the axle box rubber spring, the axle box rubber spring according to the above embodiments is provided with a blind hole 6 on an upper flat plate side or a lower flat plate side, and the blind hole 6 is extending to the rubber member 3 (as shown in FIG. 7). In this way, the free surface of the rubber member 3 may be increased, and the rubber member 3 may have a larger vertical deformation when subjected to a vertical force, which may further increase the vertical deflection of the axle box rubber spring.

The axle box rubber spring according to the above embodiments of the present application is of an integrated vulcanization structure which may facilitate the production.

The axle box rubber springs according to the above embodiments may be combined depending on the actual requirements to meet various requirements of the vertical deflection, the transversal rigidity and the longitudinal rigidity. When the vertical deflection, the longitudinal rigidity and the transversal rigidity are required to be increased at the same time, the combination may be in the following form. A surface, connected with the rubber member 3, of at least one of the upper end plate 1 and the lower end plate 2 is provided with a projection 4 and a recess 5 which are distributed alternately, each of the projection 4 and the recess 5 is in a strip shape and is extending in the transversal direction; the upper end plate 1 includes an upper flat plate 12 and two upper inclined plates 11 connected to two ends of the upper flat plate 12 respectively; the lower end plate 2 includes a lower flat plate 22 and two lower inclined plates 21 connected to two ends of the lower flat plate 22 respectively; and the rubber member 3 is provided with an adjusting hole 31. Or, the combination may be in the following form. A surface, connected with the rubber member 3, of at least one of the upper end plate 1 and the lower end plate 2 is provided with a projection 4 and a recess 5 which are distributed alternately, and each of the projection 4 and the recess 5 is in a strip shape and is extending in the transversal direction; the upper end plate 1 includes an upper flat plate 12 and two upper inclined plates 11 connected to two ends of the upper flat plate 12 respectively; the lower end plate 2 includes a lower flat plate 22 and two lower inclined plates 21 connected to two ends of the lower flat plate 22 respectively; and a blind hole 6 is provided on an upper flat plate side or on a lower flat plate side. Apparently, the adjusting hole 31 and the blind hole 6 may be both provided to increase the vertical deflection.

The axle box rubber springs according to the embodiments of the present application may be freely combined according to actual requirements if it is possible, and the combination is not limited in the embodiments of the present application.

Based on the axle box rubber springs according to the above embodiments, an embodiment of the present application further provides a railway wagon bogie having the axle box rubber spring according to the above embodiments.

Since the axle box rubber spring according to the above embodiments has the above technical effects, the railway wagon bogie according to the above embodiment having the above axle box rubber spring also has the corresponding technical effects, which will not be described herein.

Based on the above description of the disclosed embodiments, the person skilled in the art is capable of carrying out or using the present application. It is obvious for the person skilled in the art to make many modifications to these embodiments. The general principle defined herein may be applied to other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments illustrated herein, but should be defined by the broadest scope consistent with the principle and novel features disclosed herein. 

1. An axle box rubber spring comprising an upper end plate, a lower end plate and a rubber member filled between the upper end plate and the lower end plate, wherein a surface, connected with the rubber member, of at least one of the upper end plate and the lower end plate is provided with a projection and a recess which are distributed alternately, and each of the projection and the recess is in a strip shape.
 2. The axle box rubber spring according to claim 1, wherein the projection and the recess which are distributed alternately are provided on both the surface, connected with the rubber member, of the upper end plate and the surface, connected with the rubber member of the lower end plate; and the projection on the upper end plate is opposite to the recess on the lower end plate, and the recess on the upper end plate is opposite to the projection on the lower end plate.
 3. The axle box rubber spring according to claim 1, wherein the upper end plate comprises an upper flat plate and two upper inclined plates connected to two ends of the upper flat plate respectively, the upper inclined plate is inclined with respect to the upper flat plate, and an angle formed between the upper inclined plate and the upper flat plate is an obtuse angle; the lower end plate comprises a lower flat plate and two lower inclined plates connected to two ends of the lower flat plate respectively, and the lower inclined plate is inclined with respect to the lower flat plate; and the lower inclined plate and the upper inclined plate which are located at the same side have the same inclination direction.
 4. The axle box rubber spring according to claim 3, wherein the projection and the recess are arranged on the upper flat plate and/or the lower flat plate; and each of the projection and the recess is extending in a longitudinal direction or in a transversal direction; the longitudinal direction is a direction of the upper flat plate extending from one upper inclined plate toward the other upper inclined plate, and the transversal direction is a direction which is perpendicular to the longitudinal direction and parallel to the upper flat plate.
 5. The axle box rubber spring according to claim 3, wherein the projection and the recess are arranged on the upper inclined plate and/or the lower inclined plate; and each of the projection and the recess is extending in a transversal direction or in an inclination direction of the upper inclined plate; the transversal direction is a direction which is perpendicular to a longitudinal direction and parallel to the upper flat plate, and the longitudinal direction is a direction of the upper flat plate extending from one upper inclined plate toward the other upper inclined plate.
 6. The axle box rubber spring according to claim 1, wherein the rubber member is provided with an adjusting hole.
 7. The axle box rubber spring according to claim 6, wherein the upper end plate comprises an upper flat plate and two upper inclined plates connected to two ends of the upper flat plate respectively, the upper inclined plate is inclined with respect to the upper flat plate, and an angle formed between the upper inclined plate and the upper flat plate is an obtuse angle; the lower end plate comprises a lower flat plate and two lower inclined plates connected to two ends of the lower flat plate respectively, and the lower inclined plate is inclined with respect to the lower flat plate; the lower inclined plate and the upper inclined plate which are located at the same side have the same inclination direction; and the adjusting hole is located between the upper inclined plate and the lower inclined plate.
 8. The axle box rubber spring according to claim 6, wherein the upper end plate comprises an upper flat plate and two upper inclined plates connected to two ends of the upper flat plate respectively, the upper inclined plate is inclined with respect to the upper flat plate, and an angle formed between the upper inclined plate and the upper flat plate is an obtuse angle; the lower end plate comprises a lower flat plate and two lower inclined plates connected to two ends of the lower flat plate respectively, and the lower inclined plate is inclined with respect to the lower flat plate; the lower inclined plate and the upper inclined plate which are located at the same side have the same inclination direction; and the adjusting hole is located on a connecting part where the upper flat plate and the upper inclined plate are connected.
 9. The axle box rubber spring according to claim 1, wherein a blind hole is provided on an upper flat plate side or a lower flat plate side of the axle box rubber spring and is extending to the rubber member.
 10. The axle box rubber spring according to claim 2, wherein a blind hole is provided on an upper flat plate side or a lower flat plate side of the axle box rubber spring and is extending to the rubber member.
 11. The axle box rubber spring according to claim 3, wherein a blind hole is provided on an upper flat plate side or a lower flat plate side of the axle box rubber spring and is extending to the rubber member.
 12. The axle box rubber spring according to claim 4, wherein a blind hole is provided on an upper flat plate side or a lower flat plate side of the axle box rubber spring and is extending to the rubber member.
 13. The axle box rubber spring according to claim 5, wherein a blind hole is provided on an upper flat plate side or a lower flat plate side of the axle box rubber spring and is extending to the rubber member.
 14. The axle box rubber spring according to claim 6, wherein a blind hole is provided on an upper flat plate side or a lower flat plate side of the axle box rubber spring and is extending to the rubber member.
 15. The axle box rubber spring according to claim 7, wherein a blind hole is provided on an upper flat plate side or a lower flat plate side of the axle box rubber spring and is extending to the rubber member.
 16. The axle box rubber spring according to claim 8, wherein a blind hole is provided on an upper flat plate side or a lower flat plate side of the axle box rubber spring and is extending to the rubber member.
 17. A railway wagon bogie, comprising an axle box rubber spring, wherein the axle box rubber spring comprises an upper end plate, a lower end plate and a rubber member filled between the upper end plate and the lower end plate, and a surface, connected with the rubber member, of at least one of the upper end plate and the lower end plate is provided with a projection and a recess which are distributed alternately, and each of the projection and the recess is in a strip shape. 